6z-7=5z-20

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Solution for 6z-7=5z-20 equation:


Simplifying
6z + -7 = 5z + -20

Reorder the terms:
-7 + 6z = 5z + -20

Reorder the terms:
-7 + 6z = -20 + 5z

Solving
-7 + 6z = -20 + 5z

Solving for variable 'z'.

Move all terms containing z to the left, all other terms to the right.

Add '-5z' to each side of the equation.
-7 + 6z + -5z = -20 + 5z + -5z

Combine like terms: 6z + -5z = 1z
-7 + 1z = -20 + 5z + -5z

Combine like terms: 5z + -5z = 0
-7 + 1z = -20 + 0
-7 + 1z = -20

Add '7' to each side of the equation.
-7 + 7 + 1z = -20 + 7

Combine like terms: -7 + 7 = 0
0 + 1z = -20 + 7
1z = -20 + 7

Combine like terms: -20 + 7 = -13
1z = -13

Divide each side by '1'.
z = -13

Simplifying
z = -13

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